Method for installing coil groups in an electric machine
AssigneeLiebherr-Aerospace Toulouse SAS
InventorsMathieu COUDERC, François RAMADOUR
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Abstract
The invention relates to a method for installing coil groups in an electric machine (100), each coil group (104, 204) comprising at least one coil, each coil being composed of a plurality of turns of conductors, characterized in that it comprises, for each coil group (104, 204), the following installation steps applied to each coil group before being applied to the following coil group: a step of inserting a first coil group into at least two free or partially occupied slots (106) of the electric machine (100), the coil portions arranged outside the slots forming the coil heads, a definitive shaping step by compacting the heads of the coils of said coil group into a predetermined shape, by a preconfigured apparatus.
Claims10
A method for installing coil groups in an electric machine, each of the coil groups comprising at least one coil, each said coil being composed of a plurality of turns of conductors, the method comprising installation steps for each of the coil groups applied thereto before being applied to a following one of the coil groups:
- inserting a first one of the coil groups into at least two free or partially occupied slots of the electric machine, wherein portions of the at least one coil which are arranged outside the slots form coil heads,
- shaping the coil heads by compacting the coil heads into a predetermined shape, by a preconfigured apparatus.
A device assisting the installation of a coil group amongst coil groups of an electric machine, each of the coil groups comprising at least one coil, each said coil being composed of a plurality of turns of conductors, device being, configured to perform, after installation of each coil of the coil group, shaping by compacting, the shaping comprising inserting a first one of the coil groups into at least two free or partially occupied slots of the electric machine, wherein portions of the at least one coil which are arranged outside the slots form coil heads, and shaping the coil heads by compacting the coil heads into a predetermined shape,
- the device comprising:
- a compression tool configured to exert a force on the coil heads according to one or more radial components and
- a shaping tool surrounding the coil heads and configured such that the coil heads bear against an inner surface of the shaping tool when they are compressed by the compression tool.
An electric machine, comprising slots intended to receive coils, the machine comprising coil groups installed by, after installation of each coil of a coil group amongst the coil groups, inserting a first one of the coil groups into at least two free or partially occupied slots of the electric machine, wherein portions of the coil which are arranged outside the slots form coil heads, and shaping the coil heads by compacting the coil heads into a predetermined shape.
Dependencies are inferred from the claim text.